Our solid phase extraction (SPE) disks are the best in the market, and a great tool for laboratories that do a lot of testing under EPA Method 1664.

And right now labs who purchase our SPE disks will receive additional free disks as part of our year-end sale. Perhaps the best evidence of this is a flow rate comparison for CPI International’s oil and grease disks’ filter times in relation to the filter times of membrane disks and other glass fiber disks for four different typical sample types analyzed by a citrus producer, a food manufacturer, an airline and a car wash. The results are below:

Sample Type: Citrus Producer

Filter Times: CPI Oil & Grease Disks (1 hr. 38 min.), Membrane Disks (5 hrs.), Other Glass Fiber Disks (4 hrs.)

Sample Type: Foods Manufacturer

Filter Times: CPI Oil & Grease Disks (1 hr. 48 min.), Membrane Disks (2 hrs. 18 min.), Other Glass Fiber Disks (4 hrs. 30 min.)

Sample Type: Airline

Filter Times: CPI Oil & Grease Disks (21 min.), Membrane Disks (56 min.), Other Glass Fiber Disks (41 min.)

Sample Type: Car Wash

Filter Times: CPI Oil & Grease Disks (25 min.), Membrane Disks (42 min.), Other Glass Fiber Disks (37 min.)

In general, our oil & grease SPE disks make analysis much easier as compared to liquid/liquid extraction, as not only are the disks easier to use, but they also significantly lower extraction times, require much less solvent (they only use 45 mL and save 45 mL), do not form emulsions during sample preparation, and provide equivalent or superior extraction performance.

Plus, our oil & grease SPE disks result in significant cost-savings in comparison to liquid/liquid extraction, and are available at a great deal right now via our year-end sale.

For a limited time only, labs that purchase 20 packs of SPE disks will receive five free packs, while the purchase of 40 packs will result in 10 free packs and the purchase of 100 packs will result in 50 free packs.

To take advantage of these deals or learn more about our oil & grease SPE disks, please call our office at 1-800-878-7654 or send an email to feedback@cpiinternational.com.

We also have many other great deals going on right now for standards, glassware, Colitag and other products right now, for which more information is available at www.cpiinternational.com.

Just like all of our products, our oil & grease SPE disks are the best in the business, and we guarantee it.